Locomotive stoker



.. Patented Mar. 22, 1932 'LoNNIE nnwhnn OSBORNE, nncnasnn,

nxnonrmx, or nsnrnvun, PENNSYLVANIA,

UNITED STATES zo'nnm e, osBon n,

PATENT! orrucs LATE F PITTSBURGH, PENNSYLVANIA, BY

AssrsNon TO THE STANDARD STOKE'B COMPANY INCORPORATED, A. COEIEOBATION"OF DELAWARE LOUOM'OTIVE STOKER Original application filed March 19,1926, Serial No 1929. Serial No. 365,893.

the firebed by suitable distributing mecha- I L to provide an entranceto w of the fire where The invention relates to the fireboxes oflocomotives, and to the means for delivering fuel thereto; andone. ofthe objects of the invention consists in providing the backhead of thefirebox with an inwardly opening chamber or alcove into which fuel isdelivered and from which it is scattered over the grate, therebyreducing or eliminating encroachment on the grate area.

Another object of the invention is the provision of an aperture throughthe backhead of the firebox together with new and improved means forconducting fuel from a source of supply through said opening anddistributing the same over the grates of said firebox. l

A specific embodiment of the invention is illustrated on the-drawingsand hereinafter described, this application being a division of myapplication, Serial No. 95,918, filed March 19, 1926, Patent No.1,718,065, June 18, 1929.

On the drawings,

Fig. 1 is a detail longitudinal vertical section of a firebox and. thefuel feeding device associated therewith; and

Fig. 2 is a detail section on the line 2-2 ofFi.1.f'.'

Re erring now to the drawings, the reference character 9 designates alocomotive having the conventional backhead 10 thereof provided with anaperture 11 in its lower portion, which may, if desired, extend to apoint above the cab deck 15 as clearly shown in Fig. 1 of the drawings.A suitable closure 12 is provided for this aperture. lar form ofconstruction shown the closure 12 is removably secured, as by means ofbolts, to the backhead, this casing being of sufiicient size to extendto the side and top margins o the aperture and the contour of its lowermargin in relation to the aperture may be such as the firebox in theform of a chamber or alcove 13, for the introduction of fuel by powermeans. introduced into the firebox through the aperture 11 by suitableconveying mechanism that conveys the fuel from a source of supply anddelivers it to a ploint above the normal level y it may be distributedover In the particu- Fuel is 95,918. Divided and this application filedmy 25,

nism. In the form of construction selected to illustrate one embodimentof the invention, this conveying mechanism mainly includes a fuelconveying conduit 14, located below the deck 15 of the locomotive cab 16and it extendsforward under the lower margin i of the casing or cover12, its inner end 17 being upturned forward of the casing and beinghoused within the chamber or alcove. This upstanding portion of theconduit may be readily removed from the section of which it forms acontinuation. The casing 12 also serves to form a closure between theaperture 11 and the cab 16 of the locomotive.

A fuel advancing element, such as the screw 18, is housed within theconduit and terminates at the elbow from which the upstanding section 17rises. The fuel is forced upwardly past the elbow to the delivery end ofthe conduit by pressure of the forwardly advancing stream of fuel beingconveyed by the screw. 1

A steam nozzle 19 is located immediately above the delivery end of theconduit and at its rearward side, and will deliver a steam blast in theform of one or more jets across,

f interfering with the draft through'the grate.

The casing 12 is preferably provided with an openable section '22,suitably secured, as by a hinge, as shown, and which permits readyaccess to the chamber or alcove for the purpose of observation orrectification of any irregularity in the fuel delivery.

With this formation of the firebox backhead the repair or replacement ofthe fuel feeding conduit can be readily made byvremoving the casing 12,and the upstanding the relative sizes of the conduit 17 and section 17of the conduit may be removed; Its repairs or replacement may be madewhile a fire is maintained on the grates, and, in a comparatively shorttime, the necessity for shopping the locomotive for such repairs beingavoided.

The size and shape or form of theclosure 11 may be varied, as conditionsmay require or as necessitated by the desired shape and form of theconduit 14.

The construction illustrated permits the use of the invention withexisting locomotives, not requiring the necessity of providing a newbackhead and it has the further advantage in the provision of a chamberor alcove formation of the backhead, that can be readily andinexpensively constructed in the railroad shops and by unskilledmechanics.

It is apparent that this invention provides for the introduction of fuelto the firebox through a fuel feeding conduit removed from the spaceusually occupied by the grate, and therefore, the fuel feeding devicedoes not encroach upon or restrict the grate area of the firebox. Theinvention further pro- Vides an arragement in which the delivery elementof the fuel feeding device is somewhat removed from the zone of intenseheat, thereby reducing the maintenance of the device and furtherprotecting the conduit by the introduction of air from without thefirebox.

What is claimed is:

1. In combination, a firebox provided with a backhead havin an aperturetherein and a grate extending forwardly from the backhead, a fueltransfer conduit communicating with the firebox outside of the rearmargin of the grate through said aperture in the backhead and deliveringupwardly, an external cover separable from the backhead for saidaperture ofi'set outwardly to inclose the delivery end of said conduit,and means for scattering the fuel from the conduit over the firebox.

2. In combination, a locomotive having a cab and a firebox provided witha backhead having an aperture therethrough for introduction of fuel tothe firebox, an external cover separable from the backhead for saidaperture forming a closure between such aperture and the cab of saidlocomotive, a fuel transfer conduit extending forward below the lowermargin of said cover and delivering into the firebox through saidaperture and means for scattering fuel from the conduit over thefirebed.

3. In combination, a locomotive having a cab and a firebox provided witha backhead having an opening therethrough for the introduction of fuelto the firebox, an external cover separable from the backhead for saidopening forming a closure between such opening and the cab of saidlocomotive, a fuel a backhead having an aperture therethrough,

an external cover separable from the backhead for said aperture, thelower margin of said cover having such contour in relation to saidaperture as to provide an entrance the'rethrough for the introduction offuel by power means to the firebox, said power means comprising a fueltransfer conduit extending forward below the lower margin of said coverand communicating with the firebox through said aperture, and means forscattering fuel delivered by the conduit over the fire.

5. In combination, a firebox provided with a backwall having an aperturethrough its lower marginal portion, grates extending forwardly from saidbackhead, an external cover separable from the backhead, and coveringthe aperture to form an alcove exteriorly to the firebox, a fuel feedingconduit delivering into the alcove, and means for scattering the fuelthrough said aperture and over the grate in aerial paths.-

6. In combination, a firebox having its backhead apertured, a casingsecured to the backhead and covering the aperture to form an alcoveexteriorly to the firebox, a fuel conveying conduit delivering into thealcove, and a steam nozzle for directing a distributing blast throughthe alcove into the firebox.

7. In combination, a firebox having its backhead apertured adjacent itslower margin, a casing secured to the backhead and covering the apertureto form an alcove, a fuel conveying conduit delivering within thealcove, and a steam nozzle for directing a distributing blast throughthe alcove into the firebox.

8. In combination, a firebox' having its backhead apertured adjacent itslower margin, a casing removably secured to the backhead and coveringthe aperture to form an alcove, a fuel conveying conduit deliveringwithin the alcove, the end of the conduit being removable, and a steamnozzle for directing a distributing blast through the alcove into thefire box.

9. In combination, a firebox having its Ewecutm'm of the Estate of theLate Lonnie Edward Osborne.

